Features
| • |
Easily drives 600Ω loads
|
| • |
Optimized for superior audio signal fidelity
|
| • |
Output short circuit protection
|
| • |
PSRR and CMRR exceed 120dB (typ)
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| • |
SOIC, DIP packages
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Description The LME49860 is part of the ultra-low distortion, low noise, high slew rate operational amplifier series optimized and fully
specified for high performance, high fidelity applications. Combining advanced leading-edge process technology with state-of-the-art
circuit design, the LME49860 audio operational amplifiers deliver superior audio signal amplification for outstanding audio
performance. The LME49860 combines extremely low voltage noise density (2.7nV/
√
^Hz) with vanishingly low THD+N (0.00003%) to easily satisfy the most demanding audio applications. To ensure that the most challenging
loads are driven without compromise, the LME49860 has a high slew rate of ±20V/μs and an output current capability of ±26mA.
Further, dynamic range is maximized by an output stage that drives 2kΩ loads to within 1V of either power supply voltage and
to within 1.4V when driving 600Ω loads.
The LME49860's outstanding CMRR (120dB), PSRR (120dB), and VOS (0.1mV) give the amplifier excellent operational amplifier DC performance.
The LME49860 has a wide supply range of ±2.5V to ±22V. Over this supply range the LME49860 maintains excellent common-mode
rejection, power supply rejection, and low input bias current. The LME49860 is unity gain stable. This Audio Operational Amplifier
achieves outstanding AC performance while driving complex loads with values as high as 100pF.
The LME49860 is available in 8–lead narrow body SOIC and 8–lead Plastic DIP packages. Demonstration boards are available for
each package.
Key Specification
| ■
Power Supply Voltage Range
|
±2.5V to ±22V
|
| ■
THD+N
(AV = 1, VOUT = 3VRMS, fIN = 1kHz)
|
|
| RL = 2kΩ
|
0.00003% (typ)
|
| RL = 600Ω
|
0.00003% (typ)
|
| ■
Input Noise Density
|
2.7nV/
√
^Hz (typ)
|
| ■
Slew Rate
|
±20V/μs (typ)
|
| ■
Gain Bandwidth Product
|
55MHz (typ)
|
| ■
Open Loop Gain (RL = 600Ω)
|
140dB (typ)
|
| ■
Input Bias Current
|
10nA (typ)
|
| ■
Input Offset Voltage
|
0.1mV (typ)
|
| ■
DC Gain Linearity Error
|
0.000009%
|
Applications
| • |
Ultra high quality audio amplification
|
| • |
High fidelity preamplifiers
|
| • |
High fidelity multimedia
|
| • |
State of the art phono pre amps
|
| • |
High performance professional audio
|
| • |
High fidelity equalization and crossover networks
|
| • |
High performance line drivers
|
| • |
High performance line receivers
|
| • |
High fidelity active filters
|
|
Passively Equalized RIAA Phono Preamplifier
|
